20591359 has 2 divisors, whose sum is σ = 20591360. Its totient is φ = 20591358.

The previous prime is 20591341. The next prime is 20591377. The reversal of 20591359 is 95319502.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20591341) and next prime (20591377).

It is a cyclic number.

It is not a de Polignac number, because 20591359 - 2¹⁵ = 20558591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20591339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10295679 + 10295680.

It is an arithmetic number, because the mean of its divisors is an integer number (10295680).

Almost surely, 2^20591359 is an apocalyptic number.

20591359 is a deficient number, since it is larger than the sum of its proper divisors (1).

20591359 is an equidigital number, since it uses as much as digits as its factorization.

20591359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 20591359 is about 4537.7702674331. The cubic root of 20591359 is about 274.0911439550.

The spelling of 20591359 in words is "twenty million, five hundred ninety-one thousand, three hundred fifty-nine".